Multiple uses for fitting a variety of hardware to frames where there is a steel or aluminium reinforcement present. Approval All tested to BS EN ISO 9227:2006. UKAS Accredited. In accordance with BS 7412 and both the BPF and GGF guidelines. Corrosion Rating 2 - Occasionally damp/wet, rural and sheltered areas Description Multiple uses for fitting a variety of hardware to frames where there is a steel or aluminium reinforcement present. Driver Bit Size PH2 Finish Zinc Head Type Countersunk Length mm 29 Material Carbon Steel Max Drilling Thickness mm 2.5 Pack Dimensions L x W x H mm 135 x 90 x 90 Pack Weight kg 1.871 Point Type Self-Drilling Product Code 126Z Recess Type Phillips Size mm 3.9 x 29 Substrates Steel Thread Dia. mm 3.9 Thread Type Self-Tapping